It was actually pretty easy to make. Lots of step by step videos on YouTube including links to all of the parts.

Download the software, and it does all of the work. Then it just takes a little searching to get the ROMs (easy downloads there too) and finding the Raspberry Pi Zero can be a challenge. A lot of people buy them for $5 and then sell them for more than the Pi 3.

Micro Center had a Pi Zero kit with the correct power supply, and a couple of the cables for like $25, the other cables and controllers were found on Amazon. If you want to put it in a gaming case, then the real sucky part is that the screws are very specialized and need special tools, or some creative way to remove the screws (saw a video of someone using a melted toothbrush (yeah) to make a mold of the top of one of the screws.

Or just get a different box, a Pi 3 (which needs fewer cables) and follow the same directions. You can play more game systems, have fewer cables, and have things like build in networking and bluetooth for wireless gaming.

Farewell - June 4, 2020